2944 查看數據表（PDF） - Allegro MicroSystems

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2944

QUAD HIGH-CURRENT,HIGH-VOLTAGE SOURCE DRIVER

Allegro MicroSystems 

2944

VS

Dwg. No. A-13,054

ABSOLUTE MAXIMUM RATINGS

at +25°C Free-Air Temperature

Supply Voltage Range, VS ..... 10 V to 60 V

Output Current, IOUT

(continuous) ............................... -4.0 A

(peak) ......................................... - 5.0 A

Input Voltage, VIN ................................ 15 V

Package Power Dissipation,

PD ....................................... See Graph

Operating Temperature Range,

TA ................................ -20°C to +85°C

Storage Temperature Range,

TS .............................. -55°C to +150°C

Output current rating will be limited by

ambient temperature, duty cycle, heat

sinking, air flow, and number of outputs

conducting. Under any set of conditions, do

not exceed the -5.0 A peak current or a

junction temperature of +150°C.

QUAD HIGH-CURRENT,

HIGH-VOLTAGE SOURCE DRIVER

Capable of driving loads to 4 A at supply voltages to 60 V (induc-

tive loads to 35 V), the UDN2944W is a quad high-current, high-

voltage source driver. Each of the four power drivers can provide

space- and cost-saving interface between low-level signal-processing

circuits and high-power loads in harsh environments.

Individual supply lines have been provided for each pair of drivers

so that different supplies can be used to drive multiple loads. The

controlling inputs are TTL or CMOS compatible. The outputs include

transient-suppression diodes for inductive loads.

This quad Darlington array is designed to serve as an interface

between low-level circuitry and peripheral-power loads such as sole-

noids, motors, incandescent displays, heaters, and similar loads of up to

240 W per channel. The UDN2944W is an ideal complement to the

UDN2878W quad 4 A sink driver.

For maximum power-handling capability, the UDN2944W driver

is supplied in a 12-pin single in-line, power-tab package that allows

efficient attachment of an external heat sink for maximum allowable

package power dissipation. An external heat sink is usually required

for proper operation of this device. The tab is at ground potential and

needs no insulation.

FEATURES

I Output Current to 4 A

I Output Voltage to 60 V

I Loads to 960 W

I Integral Output Suppression Diodes

I TTL and CMOS Compatible Inputs

I Plastic Single In-Line Package

I Heat-Sink Tab

Always order by complete part number: UDN2944W .

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